Tracking time by increment is easy with Chronograph feature. Cooking, games or Space exploration - this stopwatch does it all for you Eco-drive solar powered quartz movement with analog chronograph display and sapphire crystal dial window Alarm, chronograph, water-resistant Black leather strap and stainless steel case with orange dial Water resistant to 20 ATM / 200 meters / 660 feet : suitable for professional marine activity serious surface water sports and skin diving. Case size 45 mm.